Description

(2S)-2-Amino-3-(3,4-Dihydroxyphenyl)Propanoic Acid is the L-isomer of the naturally occurring amino acid L-DOPA, a key intermediate in the biosynthesis of catecholamines. This high-purity compound is essential for pharmaceutical research and development, particularly in the synthesis of active pharmaceutical ingredients (APIs) targeting neurological disorders. It serves as a critical building block for manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors requiring precise stereochemistry and consistent quality for their processes.

Application

• Pharmaceutical Intermediate: Primary use in the synthesis of L-DOPA (Levodopa) and related dopamine agonists for the treatment of Parkinson's disease.
• Biochemical Research: Used as a precursor in enzymatic studies and metabolic pathway research related to catecholamine synthesis.
• Reference Standard: Serves as a high-purity chromatographic reference standard for quality control in pharmaceutical manufacturing.
• Fine Chemical Synthesis: A chiral building block for the synthesis of more complex molecules in medicinal chemistry and asymmetric synthesis.
• Nutraceutical Development: Investigated for use in advanced dietary supplements targeting neurological support.

Basic Information

Product Name	(2S)-2-Amino-3-(3,4-Dihydroxyphenyl)Propanoic Acid
CAS No.	90638-38-3
Molecular Formula	C9H11NO4
Molecular Weight	197.19 g/mol
Synonyms	L-DOPA Intermediate; (S)-2-Amino-3-(3,4-dihydroxyphenyl)propanoic acid; (-)-L-DOPA Precursor; (2S)-2-Amino-3-(3,4-dihydroxyphenyl)propionic Acid; Levodopa Impurity; 3-Hydroxy-L-tyrosine; L-3,4-Dihydroxyphenylalanine Intermediate; L-β-(3,4-Dihydroxyphenyl)alanine
EINECS	Contact for details

Quality Control

Our (2S)-2-Amino-3-(3,4-Dihydroxyphenyl)Propanoic Acid is manufactured under strict quality management systems. Each batch is tested to ensure it meets stringent specifications for identity, purity, and chiral integrity, suitable for pharmaceutical R&D. Certificates of Analysis (COA) with detailed chromatographic data (HPLC) are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere); therefore, containers should be kept sealed under an inert gas (e.g., nitrogen or argon) after opening to maximize shelf life and maintain purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Chiral Purity (HPLC)	≥99.0%
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%
Heavy Metals	≤10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.